1 /** \file fetchmail.h header file for fetchmail */
5 * For license terms, see the file COPYING in this directory.
11 #define _NETBSD_SOURCE 1
15 #define GT_(String) gettext (String)
16 #define gettext_noop(String) String
17 #define N_(String) gettext_noop (String)
21 /* We need this for size_t */
22 #include <sys/types.h>
27 #include <sys/socket.h>
39 /** constants designating the various supported protocols -- ordered */
41 P_AUTO = 1 /**< probe IMAP and POP3 - deprecated */,
42 P_POP3 /** POP3, including APOP and KPOP, RFC 1939 et al. */,
43 P_IMAP /** IMAP4, RFC 3501 */,
44 P_ETRN /** ETRN - SMTP Service Extension for Remote Message Queue Starting, "extended TURN", RFC 1985 */,
45 P_ODMR /** ODMR/ATRN - On-Demand Mail Relay SMTP with dynamic addresses/Authenticated TURN, RFC 2645 */
48 #define SMTP_PORT "smtp"
49 #define SMTP_PORT_NUM 25
50 #define KPOP_PORT "kpop"
53 #define SIMAP_PORT 993
54 #define SPOP3_PORT 995
58 * We need to distinguish between mailbox and mailbag protocols.
59 * Under a mailbox protocol wwe're pulling mail for a speecific user.
60 * Under a mailbag protocol we're fetching mail for an entire domain.
62 #define MAILBOX_PROTOCOL(ctl) ((ctl)->server.protocol < P_ETRN)
64 /** authentication types */
66 A_ANY = 0 /**< use the first method that works */,
67 A_PASSWORD /** password authentication */,
68 A_NTLM /** Microsoft NTLM protocol */,
69 A_CRAM_MD5 /** CRAM-MD5 shrouding (RFC2195) */,
70 A_OTP /** One-time password (RFC1508) */,
71 A_APOP /** POP3 APOP */,
72 A_KERBEROS_V5 /** authenticate w/ Kerberos V5 */,
73 A_GSSAPI /** authenticate with GSSAPI */,
74 A_SSH /** authentication at session level */,
75 A_MSN /** same as NTLM with keyword MSN */,
76 A_EXTERNAL /** external authentication (client cert) */
79 /* some protocols or authentication types (KERBEROS, GSSAPI, SSH) don't
80 * require a password */
81 #define NO_PASSWORD(ctl) \
82 ((ctl)->server.authenticate == A_OTP \
83 || (ctl)->server.authenticate == A_KERBEROS_V5 \
84 || (ctl)->server.authenticate == A_GSSAPI \
85 || (ctl)->server.authenticate == A_SSH \
86 || (ctl)->server.authenticate == A_EXTERNAL \
87 || (ctl)->server.protocol == P_ETRN)
90 * Definitions for buffer sizes. We get little help on setting maxima
91 * from IMAP RFCs up to 2060, so these are mostly from POP3.
93 #define HOSTLEN 635 /* max hostname length (RFC1123) */
94 #define POPBUFSIZE 512 /* max length of response (RFC1939) */
95 #define IDLEN 128 /* max length of UID (RFC1939) */
97 /* per RFC1939 this should be 40, but Microsoft Exchange ignores that limit */
98 #define USERNAMELEN 128 /* max POP3 arg length */
100 /* clear a netBSD kernel parameter out of the way */
104 * The RFC822 limit on message line size is just 998. But
105 * make this *way* oversized; idiot DOS-world mailers that
106 * don't line-wrap properly often ship entire paragraphs as
109 #define MSGBUFSIZE 8192
111 #define NAMELEN 64 /* max username length */
112 #define PASSWORDLEN 64 /* max password length */
113 #define DIGESTLEN 33 /* length of MD5 digest */
115 /* exit code values */
116 /* NOTE THAT PS_SUCCESS MUST ALWAYS BE 0 - SOME PARTS OF THE CODE
117 * RELY ON THIS VALUE! */
118 #define PS_SUCCESS 0 /* successful receipt of messages */
119 #define PS_NOMAIL 1 /* no mail available */
120 #define PS_SOCKET 2 /* socket I/O woes */
121 #define PS_AUTHFAIL 3 /* user authorization failed */
122 #define PS_PROTOCOL 4 /* protocol violation */
123 #define PS_SYNTAX 5 /* command-line syntax error */
124 #define PS_IOERR 6 /* bad permissions on rc file */
125 #define PS_ERROR 7 /* protocol error */
126 #define PS_EXCLUDE 8 /* client-side exclusion error */
127 #define PS_LOCKBUSY 9 /* server responded lock busy */
128 #define PS_SMTP 10 /* SMTP error */
129 #define PS_DNS 11 /* fatal DNS error */
130 #define PS_BSMTP 12 /* output batch could not be opened */
131 #define PS_MAXFETCH 13 /* poll ended by fetch limit */
132 #define PS_SERVBUSY 14 /* server is busy */
133 /* leave space for more codes */
134 #define PS_UNDEFINED 23 /* something I hadn't thought of */
135 #define PS_TRANSIENT 24 /* transient failure (internal use) */
136 #define PS_REFUSED 25 /* mail refused (internal use) */
137 #define PS_RETAINED 26 /* message retained (internal use) */
138 #define PS_REPOLL 28 /* repoll immediately with changed parameters (internal use) */
139 #define PS_IDLETIMEOUT 29 /* timeout on imap IDLE (internal use) */
140 #define PS_UNTAGGED 30 /* untagged response on imap command (internal use) */
142 /* output noise level */
143 #define O_SILENT 0 /* mute, max squelch, etc. */
144 #define O_NORMAL 1 /* user-friendly */
145 #define O_VERBOSE 2 /* chatty */
146 #define O_DEBUG 3 /* prolix */
147 #define O_MONITOR O_VERBOSE
149 #define SIZETICKER 1024 /* print 1 dot per this many bytes */
152 * We #ifdef this and use flag rather than bool
153 * to avoid a type clash with curses.h
161 /* we need to use zero as a flag-uninitialized value */
165 /** run control data */
168 char *logfile; /** where to write log information */
169 char *idfile; /** where to store UID data */
170 char *pidfile; /** where to record the PID of daemon mode processes */
171 const char *postmaster;
174 int pinentry_timeout;
176 int poll_interval; /** poll interval in seconds (daemon mode, 0 == off) */
186 /** Dual-use entry of singly-linked list for storing id/status or id/id2
190 char *id; /**< key */
196 flag mark; /**< UID-index information */
198 status; /**< value for id/status pairs */
199 char *id2; /**< value for id/id2 pairs */
200 } val; /**< union to store value for key \a id */
201 struct idlist *next; /**< pointer to next list element */
204 /** List of possible values for idlist::mark */
206 UID_UNSEEN= 0, /**< id hasn't been seen */
207 UID_SEEN= 1, /**< id was seen, but not deleted */
208 UID_DELETED= 2, /**< this message has been marked deleted */
209 UID_EXPUNGED= 3 /**< this message has been expunged */
216 struct method /* describe methods for protocol state machine */
218 const char *name; /* protocol name */
219 const char *service; /* service port (unencrypted) */
220 const char *sslservice; /* service port (SSL) */
221 flag tagged; /* if true, generate & expect command tags */
222 flag delimited; /* if true, accept "." message delimiter */
223 int (*parse_response)(int, char *);
224 /* response_parsing function */
225 int (*getauth)(int, struct query *, char *);
226 /* authorization fetcher */
227 int (*getrange)(int, struct query *, const char *, int *, int *, int *);
228 /* get message range to fetch */
229 int (*getsizes)(int, int, int *);
230 /* get sizes of messages */
231 int (*getpartialsizes)(int, int, int, int *);
232 /* get sizes of subset of messages */
233 int (*is_old)(int, struct query *, int);
234 /* check for old message */
235 int (*fetch_headers)(int, struct query *, int, int *);
236 /* fetch header from a given message */
237 int (*fetch_body)(int, struct query *, int, int *);
238 /* fetch a given message */
239 int (*trail)(int, struct query *, const char *);
240 /* eat trailer of a message */
241 int (*delete_msg)(int, struct query *, int);
243 int (*mark_seen)(int, struct query *, int);
244 /* mark as seen method */
245 int (*end_mailbox_poll)(int, struct query *);
246 /* end-of-mailbox processing */
247 int (*logout_cmd)(int, struct query *);
249 flag retry; /* can getrange poll for new messages? */
252 enum badheader { BHREJECT = 0, BHACCEPT };
254 /* Message retrieval error mode */
255 enum retrieveerror { RE_ABORT = 0, RE_CONTINUE, RE_MARKSEEN };
257 struct hostdata /* shared among all user connections to given server */
260 char *pollname; /* poll label of host */
261 char *via; /* "true" server name if non-NULL */
262 struct idlist *akalist; /* server name first, then akas */
263 struct idlist *localdomains; /* list of pass-through domains */
264 int protocol; /* protocol type */
265 char *service; /* service name */
266 int interval; /* # cycles to skip between polls */
267 int authenticate; /* authentication mode to try */
268 int timeout; /* inactivity timout in seconds */
269 char *envelope; /* envelope address list header */
270 int envskip; /* skip to numbered envelope header */
271 char *qvirtual; /* prefix removed from local user id */
272 flag skip; /* suppress poll in implicit mode? */
273 flag dns; /* do DNS lookup on multidrop? */
275 flag sdps; /* use Demon Internet SDPS *ENV */
276 #endif /* SDPS_ENABLE */
277 flag checkalias; /* resolve aliases by comparing IPs? */
278 flag tracepolls; /* if TRUE, add poll trace info to Received */
279 char *principal; /* Kerberos principal for mail service */
280 char *esmtp_name, *esmtp_password; /* ESMTP AUTH information */
281 enum badheader badheader; /* bad-header {pass|reject} */
282 enum retrieveerror retrieveerror; /* retrieve-error (abort|continue|markseen) */
284 #if defined(linux) || defined(__FreeBSD__)
292 struct interface_pair_s *interface_pair;
295 char *plugin,*plugout;
297 /* computed for internal use */
298 const struct method *base_protocol; /* relevant protocol method table */
299 int poll_count; /* count of polls so far */
300 char *queryname; /* name to attempt DNS lookup on */
301 char *truename; /* "true name" of server host */
302 struct sockaddr *trueaddr; /* IP address of truename */
303 size_t trueaddr_len; /* size of trueaddr data */
304 struct hostdata *lead_server; /* ptr to lead query for this server */
306 int workarounds; /* track which workarounds the user was warned about */
310 * bit flags to set in workarounds after the corresponding warning,
311 * which we assume to be server-specific, has been printed,
312 * so we don't spam our users in daemon mode.
314 #define WKA_TOP (1L << 0) /* Maillennium TOP -> RETR override warning */
318 /* mailserver connection controls */
319 struct hostdata server;
322 struct idlist *localnames; /* including calling user's name */
323 int wildcard; /* should unmatched names be passed through */
324 char *remotename; /* remote login name to use */
325 char *password; /* remote password to use */
326 struct idlist *mailboxes; /* list of mailboxes to check */
329 char *pwmd_socket; /* socket to connect to */
330 char *pwmd_file; /* file to open on the server */
333 /* per-forwarding-target data */
334 struct idlist *smtphunt; /* list of SMTP hosts to try forwarding to */
335 struct idlist *domainlist; /* domainlist to fetch from */
336 char *smtpaddress; /* address to force in RCPT TO */
337 char *smtpname; /* full RCPT TO name, including domain */
338 struct idlist *antispam; /* list of listener's antispam response */
339 const char *mda; /* local MDA to pass mail to */
340 char *bsmtp; /* BSMTP output file */
341 char listener; /* what's the listener's wire protocol? */
342 #define SMTP_MODE 'S'
343 #define LMTP_MODE 'L'
344 char *preconnect; /* pre-connection command to execute */
345 char *postconnect; /* post-connection command to execute */
347 /* per-user control flags */
348 flag keep; /* if TRUE, leave messages undeleted */
349 flag fetchall; /* if TRUE, fetch all (not just unseen) */
350 flag flush; /* if TRUE, delete messages already seen */
351 flag limitflush; /* if TRUE, delete oversized mails */
352 flag rewrite; /* if TRUE, canonicalize recipient addresses */
353 flag stripcr; /* if TRUE, strip CRs in text */
354 flag forcecr; /* if TRUE, force CRs before LFs in text */
355 flag pass8bits; /* if TRUE, ignore Content-Transfer-Encoding */
356 flag dropstatus; /* if TRUE, drop Status lines in mail */
357 flag dropdelivered; /* if TRUE, drop Delivered-To lines in mail */
358 flag mimedecode; /* if TRUE, decode MIME-armored messages */
359 flag idle; /* if TRUE, idle after each poll */
360 int limit; /* limit size of retrieved messages */
361 int warnings; /* size warning interval */
362 int fetchlimit; /* max # msgs to get in single poll */
363 int fetchsizelimit; /* max # msg sizes to get in a request */
364 int fastuidl; /* do binary search for new UIDLs? */
365 int fastuidlcount; /* internal count for frequency of binary search */
366 int batchlimit; /* max # msgs to pass in single SMTP session */
367 int expunge; /* max # msgs to pass between expunges */
368 flag use_ssl; /* use SSL encrypted session */
369 char *sslkey; /* optional SSL private key file */
370 char *sslcert; /* optional SSL certificate file */
371 char *sslproto; /** force transport protocol (ssl2|ssl3|ssl23|tls1) - if NULL,
372 use ssl23 for SSL and opportunistic tls1 for non-SSL connections. */
373 char *sslcertfile; /* Trusted certificate file for checking the server cert */
374 char *sslcertpath; /* Trusted certificate directory for checking the server cert */
375 flag sslcertck; /* Strictly check the server cert. */
376 char *sslcommonname; /* CommonName to expect from server */
377 char *sslfingerprint; /* Fingerprint to check against */
378 char *properties; /* passthrough properties for extensions */
380 /* internal use -- per-poll state */
381 flag active; /* should we actually poll this server? */
382 char *destaddr; /* destination host for this query */
383 int errcount; /* count transient errors in last pass */
384 int authfailcount; /* count of authorization failures */
385 int wehaveauthed; /* We've managed to logon at least once! */
386 int wehavesentauthnote; /* We've sent an authorization failure note */
387 int wedged; /* wedged by auth failures or timeouts? */
388 char *smtphost; /* actual SMTP host we connected to */
389 char smtphostmode; /* what's the actual SMTP host's wire protocol? */
390 int smtp_socket; /* socket descriptor for SMTP connection */
391 unsigned int uid; /* UID of user to deliver to */
392 struct idlist *skipped; /* messages skipped on the mail server */
393 struct uid_db oldsaved, newsaved;
394 char lastdigest[DIGESTLEN]; /* last MD5 hash seen on this connection */
395 char *folder; /* folder currently being polled */
397 /* internal use -- per-message state */
398 int mimemsg; /* bitmask indicating MIME body-type */
399 unsigned char digest[DIGESTLEN]; /* md5 digest buffer */
401 /* internal use -- housekeeping */
402 struct query *next; /* next query control block in chain */
405 struct msgblk /** message header parsed for open_sink() */
407 char *headers; /**< raw message headers */
408 struct idlist *recipients; /**< addressees */
409 char return_path[HOSTLEN + USERNAMELEN + 4]; /**< envelope sender */
416 * Numeric option handling. Numeric option value of zero actually means
417 * it's unspecified. Value less than zero is zero. The reason for this
418 * screwy encoding is so we can zero out an option block in order to set the
419 * numeric flags in it to unspecified.
421 #define NUM_VALUE_IN(n) (((n) == 0) ? -1 : (n))
422 #define NUM_VALUE_OUT(n) (((n) < 0) ? 0 : (n))
423 #define NUM_NONZERO(n) ((n) > 0)
424 #define NUM_ZERO(n) ((n) < 0)
425 #define NUM_SPECIFIED(n) ((n) != 0)
427 #define MULTIDROP(ctl) ((ctl)->wildcard || \
428 ((ctl)->localnames && (ctl)->localnames->next))
431 * Note: tags are generated with an a%04d format from a 1-origin
432 * integer sequence number. Length 4 permits transaction numbers
433 * up to 9999, so we force rollover with % 10000. There's no special
434 * reason for this format other than to look like the exmples in the
437 #define TAGLEN 6 /* 'a' + 4 digits + NUL */
438 extern char tag[TAGLEN];
441 /* list of hosts assembled from run control file and command line */
442 extern struct query cmd_opts, *querylist;
444 /* what's returned by envquery */
445 extern void envquery(int, char **);
447 /* controls the detail level of status/progress messages written to stderr */
448 extern int outlevel; /* see the O_.* constants above */
449 extern int yydebug; /* enable parse debugging */
451 /* these get computed */
452 extern int batchcount; /* count of messages sent in current batch */
453 extern flag peek_capable; /* can we read msgs without setting seen? */
455 /* miscellaneous global controls */
456 extern struct runctl run; /* global controls for this run */
457 extern flag nodetach; /* if TRUE, don't detach daemon process */
458 extern flag quitmode; /* if --quit was set */
459 extern int quitind; /* optind after position of last --quit option */
460 extern flag check_only; /* if --check was set */
461 extern char *rcfile; /* path name of rc file */
462 extern int linelimit; /* limit # lines retrieved per site */
463 extern flag versioninfo; /* emit only version info */
464 extern char *user; /* name of invoking user */
465 extern char *home; /* home directory of invoking user */
466 extern char *fmhome; /* fetchmail home directory */
467 extern int pass; /* number of re-polling pass */
468 extern flag configdump; /* dump control blocks as Python dictionary */
469 extern const char *fetchmailhost; /* either "localhost" or an FQDN */
470 extern int suppress_tags; /* suppress tags in tagged protocols? */
471 extern char shroud[PASSWORDLEN*2+3]; /* string to shroud in debug output */
473 extern char *sdps_envfrom;
474 extern char *sdps_envto;
475 #endif /* SDPS_ENABLE */
477 extern const char *iana_charset; /* IANA assigned charset name */
479 /* from/for ucs/norm_charmap.c */
480 #include "ucs/norm_charmap.h"
482 /* prototypes for globally callable functions */
484 /* from /usr/include/sys/cdefs.h */
485 #if !defined __GNUC__
486 # define __attribute__(xyz) /* Ignore. */
489 /* error.c: Error reporting */
490 void report_init(int foreground);
491 /** Flush partial message, suppress program name tag for next report printout. */
492 void report_flush(FILE *fp);
493 void report (FILE *fp, const char *format, ...)
494 __attribute__ ((format (printf, 2, 3)))
496 void report_build (FILE *fp, const char *format, ...)
497 __attribute__ ((format (printf, 2, 3)))
499 void report_complete (FILE *fp, const char *format, ...)
500 __attribute__ ((format (printf, 2, 3)))
502 void report_at_line (FILE *fp, int, const char *, unsigned int, const char *, ...)
503 __attribute__ ((format (printf, 5, 6)))
506 /* driver.c -- main driver loop */
507 void set_timeout(int);
508 int is_idletimeout(void);
509 void resetidletimeout(void);
510 int do_protocol(struct query *, const struct method *);
512 /* transact.c: transaction support */
513 /** \ingroup gen_recv_split
514 * Data structure to cache data between \func gen_recv_split calls,
515 * must be initialized before use by calling \func gen_recv_split_init. */
518 char prefix[100]; /**< prefix to match/repeat when splitting lines */
519 int cached; /**< flag to record if we have data cached in \a buf */
520 char buf[MSGBUFSIZE]; /**< buffer for cached data */
523 void init_transact(const struct method *);
524 int readheaders(int sock,
529 flag *suppress_readbody);
530 int readbody(int sock, struct query *ctl, flag forward, int len);
531 void gen_send(int sock, const char *, ... )
532 __attribute__ ((format (printf, 2, 3)))
534 int gen_recv(int sock, char *buf, int size);
535 void gen_recv_split_init(const char *prefix, struct RecvSplit *rs);
536 int gen_recv_split(int sock, char *buf, int size, struct RecvSplit *rs);
537 int gen_transact(int sock, const char *, ... )
538 __attribute__ ((format (printf, 2, 3)))
540 extern struct msgblk msgblk;
542 /* use these to track what was happening when the nonresponse timer fired */
543 #define GENERAL_WAIT 0 /* unknown wait type */
544 #define OPEN_WAIT 1 /* waiting from mailserver open */
545 #define SERVER_WAIT 2 /* waiting for mailserver response */
546 #define LISTENER_WAIT 3 /* waiting for listener initialization */
547 #define FORWARDING_WAIT 4 /* waiting for listener response */
550 /* response hooks can use this to identify the query stage */
551 #define STAGE_GETAUTH 0
552 #define STAGE_GETRANGE 1
553 #define STAGE_GETSIZES 2
554 #define STAGE_FETCH 3
556 #define STAGE_LOGOUT 5
559 extern int mytimeout;
561 /* mark values for name lists */
562 #define XMIT_ACCEPT 1 /* accepted; matches local domain or name */
563 #define XMIT_REJECT 2 /* rejected; no match */
564 #define XMIT_RCPTBAD 3 /* SMTP listener rejected the name */
567 int interruptible_idle(int interval);
568 extern volatile int lastsig;
570 /* sink.c: forwarding */
571 void smtp_close(struct query *, int);
572 int smtp_open(struct query *);
573 int smtp_setup(struct query *);
574 char *rcpt_address(struct query *, const char *, int);
575 int stuffline(struct query *, char *);
576 int open_sink(struct query*, struct msgblk *, int*, int*);
577 void release_sink(struct query *);
578 int close_sink(struct query *, struct msgblk *, flag);
579 int open_warning_by_mail(struct query *);
580 void stuff_warning(const char *, struct query *, const char *, ... )
581 __attribute__ ((format (printf, 3, 4)))
583 void close_warning_by_mail(struct query *, struct msgblk *);
584 void abort_message_sink(struct query *ctl);
586 /* rfc822.c: RFC822 header parsing */
587 char *reply_hack(char *, const char *, size_t *);
588 char *nxtaddr(const char *);
590 /* uid.c: UID support */
591 extern int dofastuidl;
592 void initialize_saved_lists(struct query *hostlist, const char *idfile);
593 void expunge_uids(struct query *ctl);
594 void uid_swap_lists(struct query *ctl);
595 void uid_discard_new_list(struct query *ctl);
596 void uid_reset_num(struct query *ctl);
597 void write_saved_lists(struct query *hostlist, const char *idfile);
600 struct idlist *save_str(struct idlist **idl, const char *str, flag status);
601 void free_str_list(struct idlist **idl);
602 void save_str_pair(struct idlist **idl, const char *str1, const char *str2);
603 struct idlist *str_in_list(struct idlist **idl, const char *str, const flag caseblind);
604 int str_nr_in_list(struct idlist **idl, const char *str);
605 int str_nr_last_in_list(struct idlist **idl, const char *str);
606 void str_set_mark(struct idlist **idl, const char *str, const flag val);
607 int count_list(struct idlist **idl);
608 char *str_from_nr_list(struct idlist **idl, long number);
609 char *str_find(struct idlist **idl, long number);
610 struct idlist *id_find(struct idlist **idl, long number);
611 char *idpair_find(struct idlist **idl, const char *id);
612 int delete_str(struct idlist **idl, long num);
613 struct idlist *copy_str_list(struct idlist *idl);
614 void append_str_list(struct idlist **idl, struct idlist **nidl);
617 int prc_parse_file(const char *, const flag);
618 int prc_filecheck(const char *, const flag);
621 void to64frombits(char *, const void *, int);
622 int from64tobits(void *, const char *, int maxlen);
625 /* Bit-mask returned by MimeBodyType */
626 #define MSG_IS_7BIT 0x01
627 #define MSG_IS_8BIT 0x02
628 #define MSG_NEEDS_DECODE 0x80
629 extern void UnMimeHeader(char *buf);
630 extern int MimeBodyType(char *hdrs, int WantDecode);
631 extern int UnMimeBodyline(char **buf, flag delimited, flag issoftline);
634 void interface_init(void);
635 void interface_parse(char *, struct hostdata *);
636 void interface_note_activity(struct hostdata *);
637 int interface_approve(struct hostdata *, flag domonitor);
641 /* protocol driver and methods */
642 int doPOP3 (struct query *);
643 int doIMAP (struct query *);
644 int doETRN (struct query *);
645 int doODMR (struct query *);
647 /* authentication functions */
648 int do_cram_md5(int sock, const char *command, struct query *ctl, const char *strip);
649 int check_gss_creds(const char *service, const char *hostname);
650 int do_gssauth(int sock, const char *command, const char *service, const char *hostname, const char *username);
651 int do_otp(int sock, const char *command, struct query *ctl);
655 /* these should be of size PATH_MAX */
656 extern char currentwd[1024], rcfiledir[1024];
658 struct query *hostalloc(struct query *);
659 int parsecmdline (int, char **, struct runctl *, struct query *, flag *);
660 char *prependdir (const char *, const char *);
661 char *MD5Digest (unsigned const char *);
662 void hmac_md5 (const unsigned char *, size_t, const unsigned char *, size_t, unsigned char *, size_t);
663 int POP3_auth_rpa(char *, char *, int socket);
664 typedef void (*SIGHANDLERTYPE) (int);
665 void deal_with_sigchld(void);
666 void null_signal_handler(int sig);
667 SIGHANDLERTYPE set_signal_handler(int sig, SIGHANDLERTYPE handler);
668 int daemonize(const char *);
669 char *fm_getpassword(char *);
670 void escapes(const char *, char *);
671 char *visbuf(const char *);
672 const char *showproto(int);
673 void dump_config(struct runctl *runp, struct query *querylist);
674 int is_host_alias(const char *, struct query *, struct addrinfo **);
676 extern struct addrinfo *ai0, *ai1;
678 /** Try to obtain fully qualified hostname of current host. Exit with
679 * PS_DNS if \a required is true and there is a DNS error. Exit with
680 * PS_DNS if gethostname() fails, independent of the value of \a
683 * - fully qualified hostname if \a required is non-zero.
684 * - unqualified or fully qualified hostname if \a required is zero (0).
686 char *host_fqdn(int required /** exit with PS_DNS if the name cannot be qualified */);
687 char *rfc822timestamp(void);
689 char *rfc2047e(const char*, const char *);
691 void yyerror(const char *);
694 #define STRING_DISABLED (char *)-1
695 #define STRING_DUMMY ""
698 char *stpcpy(char *, const char*);
703 #else /* !__CYGWIN__ */
705 #endif /* __CYGWIN__ */
707 extern int mailserver_socket_temp;
708 extern const char *program_name;
710 /* POSIX space characters,
711 * <tab>;<newline>;<vertical-tab>;<form-feed>;<carriage-return>;<space> */
712 #define POSIX_space "\t\n\v\f\r "
714 /** Resolve the a TCP service name or a string containing only a decimal
715 * positive integer to a port number. Returns -1 for error. */
716 int servport(const char *service);
718 #ifndef HAVE_GETNAMEINFO
719 # define NI_NUMERICHOST 1
720 # define NI_NUMERICSERV 2
722 # define NI_NAMEREQD 8
726 int fm_getaddrinfo(const char *node, const char *serv, const struct addrinfo *hints, struct addrinfo **res);
727 void fm_freeaddrinfo(struct addrinfo *ai);
729 /* prototypes from tls.c */
730 int maybe_tls(struct query *ctl);
731 int must_tls(struct query *ctl);
733 /* prototype from rfc822valid.c */
734 int rfc822_valid_msgid(const unsigned char *);
736 /* prototype from x509_name_match.c */
737 int name_match(const char *p1, const char *p2);
739 /* prototype from ntlmsubr.c */
741 int ntlm_helper(int sock, struct query *ctl, const char *protocol);
744 /* macro to determine if we want to spam progress to stdout */
745 #define want_progress() \
746 ((outlevel >= O_VERBOSE || (outlevel > O_SILENT && run.showdots)) \
748 && (run.showdots || !is_a_file(1)))
751 /* fetchmail.h ends here */